<!DOCTYPE html>
<html lang="zh" xmlns="http://www.w3.org/1999/xhtml" xmlns:th="http://www.thymeleaf.org">
<head>
    <meta charset="UTF-8"/>
    <title th:text="${title}">邮箱验证码</title>
</head>
<body>
    <div><p th:if="${p != null}" th:text="'P不为空，值为：' + ${p}"></p></div>
    <div>只有这一行aaaaaaa</div>
</body>
</html>